Description:The White House rocked out on Thursday (March 06) as soul singers spanning different generations performed for a "women of soul" concert. Among those participating were Melissa Etheridge, Patti LaBelle, Janelle Monae, and Aretha Franklin - who all joined on stage for a collaboration of "Proud Mary." The concert, called "In Performance at the White House," will be broadcast on April 7 in the U.S. on PBS.(1:33)